#143D7A#143D7A

#143D7A is a dark, moderate blue. Relative luminance 0.049; OKLCH L 36.9% C 0.114 H 258.7°. Best body text is #FFFFFF at 10.62:1 contrast (WCAG AA passes).

Color values

HEX	#143D7A
RGB	rgb(20, 61, 122)
HSL	hsl(216, 72%, 28%)
HSV	hsv(216, 84%, 48%)
CMYK	cmyk(83.6%, 50%, 0%, 52.2%)
CIE-LAB	lab(26.42, 10.18, -38.75)
CIE-LCH	lch(26.42, 40.06, 284.72°)
OKLab	oklab(36.89% -0.0223 -0.1114)
OKLCH	oklch(36.89% 0.114 258.7)
XYZ	xyz(5.4688, 4.8907, 19.0643)
Luminance	0.0489 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143D7A #7A5114

analogous

#14707A #143D7A #1E147A

triadic

#143D7A #7A143D #3D7A14

tetradic

#143D7A #7A1470 #7A5114 #147A1E

square

#143D7A #7A1470 #7A5114 #147A1E

split-complementary

#143D7A #7A1E14 #707A14

monochromatic

#040D1A #0B2345 #143D7A #1D57AF #2C73DC

Accessibility & contrast

On white

10.62

#143D7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#143D7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143D7A

10.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143D7A	#FFFFFF	#000000	##FFFFFF
##143D7A	1.00	10.62	1.98	10.62
#FFFFFF	10.62	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A437C

Deuteranopia (green-blind)

#003A79

Tritanopia (blue-blind)

#004C55

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #143d7a;
/* rgb */ color: rgb(20, 61, 122);
/* oklch */ color: oklch(36.9% 0.114 258.7);

Tailwind

colors: {
  custom: {
    50: '#6471a1',
    500: '#143d7a',
    950: '#000000',
  },
}

SCSS

$custom: #143d7a;
$custom-light: #6471a1;
$custom-dark: #000000;

JSON

{
  "hex": "#143d7a",
  "rgb": {
    "r": 20,
    "g": 61,
    "b": 122
  },
  "hsl": {
    "h": 215.882,
    "s": 71.831,
    "l": 27.843
  },
  "oklch": {
    "l": 0.36885,
    "c": 0.11361,
    "h": 258.7
  },
  "luminance": 0.04891
}

Semantic roles & 50–950 ramp

primary

#143D7A

secondary

#B0803A

accent

#A639EF

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070F

muted

#7A7A7E

Preview Lab

Preview with #143D7A

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →